Eccentricity Optimisation of Annular Multi-Tube Storage Unit with Phase Change Material

Harmen, Yasser; Chhiti, Younes; Fiti, Maryam El; Salihi, Mustapha; Jama, Charafeddine

doi:10.2139/ssrn.4291427

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“…T A B L E 2 Thermophysical properties of materials. 14,17,24,26 Material μ kg ( /ms) Continuity equation:…”

Section: Methodsmentioning

confidence: 99%

“…Also, they showed that the stored energy is higher in the vertical heat exchanger than in a horizontal heat exchanger. Harmen et al 14 investigated the eccentricity analysis of an annular multitube storage unit with PCM. They found that the eccentric charge performance is better than the concentric tube arrangement and the optimal eccentricity of the charging cycle depends on the tube number.…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of the shell configuration effect on the melting of various phase change materials in the presence of porous medium and non‐Newtonian fluid

Azarbarzin

Javaherdeh

2023

Heat Trans

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By considering the ability of phase change materials (PCMs) in the storage of energy, the melting of four types PCMs including RT22, RT26, RT35, and RT41 in a heat exchanger is examined in this research. The impact of various shell cross‐sectional configurations on the complete melting time of materials, temperature changes, and liquid fraction throughout the melting process are presented. It is assumed that the main heat transfer fluid in the tube is non‐Newtonian and the tube is filled with a porous medium. The enthalpy porosity manner is applied for simulating the process of phase change and the heat natural convection and conduction cases are discussed. On the basis of the obtained results, the decrease in complete melting time is about 20% compared with the absence of a porous medium in the circular cross‐section configuration. The shell configuration has a noticeable impact on the reduction of the required time for melting. In the square cross‐section configuration, RT22 has the lowest melting time, as well as RT41 has the longest melting time in the inverted triangular cross‐section configuration in which the maximum time difference for RT22 is about 77% less. So, the best cross‐section for the shortest complete melting time is square.

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“…T A B L E 2 Thermophysical properties of materials. 14,17,24,26 Material μ kg ( /ms) Continuity equation:…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical investigation of the shell configuration effect on the melting of various phase change materials in the presence of porous medium and non‐Newtonian fluid

Azarbarzin

Javaherdeh

2023

Heat Trans

View full text Add to dashboard Cite

show abstract

Eccentricity Optimisation of Annular Multi-Tube Storage Unit with Phase Change Material

Cited by 1 publication

References 0 publications

Numerical investigation of the shell configuration effect on the melting of various phase change materials in the presence of porous medium and non‐Newtonian fluid

Numerical investigation of the shell configuration effect on the melting of various phase change materials in the presence of porous medium and non‐Newtonian fluid

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